/* ==========================================
   ESTILOS GENERALES Y CABECERA
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f7f9fc;
    color: #333;
}

.site-header {
    width: 100%;
    min-height: 450px;
    background: linear-gradient(rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.45)), url('../image/landscape-bg.jpg') no-repeat center center;
    background-size: cover;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.container-header {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.container-logo-title img {
    max-height: 70px;
    transition: transform 0.3s ease;
}

.container-logo-title img:hover {
    transform: scale(1.05);
}

/* ==========================================
   MENÚ CENTRAL ESTRECHO (NIVEL 1)
   ========================================== */
.container-menu {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 10px 0;
}

.menu {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-radius: 14px;
    padding: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    width: 220px; /* Ancho compacto dejando laterales libres para publicidad */
    position: relative;
}

/* Opciones principales en columna vertical */
.menu > ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.menu ul li {
    position: relative;
    width: 100%;
}

/* Nivel 1: Estilo principal (Fondo blanco, borde izquierdo azul fuerte) */
.menu > ul > li > a {
    display: block;
    padding: 9px 14px;
    background-color: #ffffff;
    color: #1e3799;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    border-left: 5px solid #0984e3;
}

.menu > ul > li:hover > a {
    background-color: #ffcc00;
    color: #1a1a1a;
    padding-left: 18px;
    border-left-color: #e17055;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* ==========================================
   SUBMENÚS: NIVEL 2 Y NIVEL 3 DIFERENCIADOS
   ========================================== */

/* NIVEL 2: Fondo gris muy claro con borde verde */
.menu ul ul {
    display: none;
    position: absolute;
    top: -8px;
    left: 55%;
    flex-direction: column;
    background: #f1f2f6; /* Fondo diferenciado gris claro */
    width: 210px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
    padding: 6px 0;
    z-index: 100;
    border: 1px solid #dcdde1;
}

.menu ul ul li a {
    display: block;
    padding: 8px 14px;
    color: #2f3640;
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    border-left: 4px solid #00b894; /* Detalle verde */
    margin: 2px 6px;
    border-radius: 4px;
    background-color: #ffffff;
    transition: background 0.2s, color 0.2s, padding-left 0.2s;
}

.menu ul ul li a:hover {
    background-color: #00b894;
    color: #ffffff;
    padding-left: 18px;
}


/* NIVEL 3: Fondo crema/amarillento claro con borde naranja/granate */
.menu ul ul ul {
    top: -8px;
    left: 55%;
    width: 210px;
    z-index: 101;
    background: #fff8e7; /* Fondo diferenciado tono crema */
    border: 1px solid #ffeaa7;
}

.menu ul ul ul li a {
    display: block;
    padding: 8px 14px;
    color: #2d3436;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    border-left: 4px solid #e17055; /* Detalle naranja */
    margin: 2px 6px;
    border-radius: 4px;
    background-color: #ffffff;
    transition: background 0.2s, color 0.2s, padding-left 0.2s;
}

.menu ul ul ul li a:hover {
    background-color: #e17055;
    color: #ffffff;
    padding-left: 18px;
}

/* Mostrar los submenús al pasar el ratón */
.menu ul li:hover > ul {
    display: flex;
}

.menu ul ul li {
    width: 100%;
}

/* ==========================================
   SECCIÓN PRINCIPAL Y FOOTER
   ========================================== */
.textos-header-ap {
    text-align: center;
    padding: 40px 20px;
    color: #ffffff;
    text-shadow: 0 2px 6px rgba(0,0,0,0.6);
}

.textos-header-ap h1 {
    font-size: 1.6rem;
    margin-bottom: 10px;
}

footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

/* ==========================================
   RESPONSIVE (MÓVILES Y ANDROID)
   ========================================== */
@media screen and (max-width: 768px) {
    .container-header {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }

    .site-header {
    width: 100%;
    min-height: 450px;
    /* La imagen de fondo se gestiona aleatoriamente desde PHP en el HTML */
    background-color: #2c3e50; 
    background-size: cover;
    background-position: center center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    }

    .menu {
        width: 100%;
        max-width: 260px;
    }

    /* En Android / pantallas táctiles pequeñas, se despliegan de forma vertical 
       en cascada manteniendo sus respectivos colores de fondo para identificarlos al instante */
    .menu ul ul, 
    .menu ul ul ul {
        position: static;
        box-shadow: none;
        width: 100%;
        margin-top: 4px;
        border-radius: 6px;
        padding-left: 6px;
    }

    .menu ul ul {
        background: #f1f2f6;
    }

    .menu ul ul ul {
        background: #fff8e7;
    }

    .menu ul li:hover > ul {
        display: flex;
    }
}